How can PHP be used to automatically update content from an external source on a daily basis?

To automatically update content from an external source on a daily basis using PHP, you can create a script that fetches the external content using cURL or file_get_contents, then parses and updates your website's content database accordingly. To automate this process daily, you can set up a cron job to run the PHP script at a specified time each day.

<?php
// Fetch external content
$external_content = file_get_contents('http://example.com/external-data');

// Parse the content and update database
// Example: $parsed_data = parse_external_content($external_content);
// Example: update_database($parsed_data);

// Cron job command: 0 0 * * * /usr/bin/php /path/to/your/script.php
?>